阅读说明：本技术 导电涂层屏罩及基于其的擦碰检测装置和方法 (Conductive coating screen cover and wiping and collision detection device and method based on conductive coating screen cover ) 是由 叶焱强 黄仁文 张军 于 2018-08-31 设计创作，主要内容包括：本发明提供一种导电涂层屏罩,用于检测交通工具表面是否发生过擦碰,所述导电涂层屏罩包括第一导电涂层和第二导电涂层,所述第一导电涂层与所述第二导电涂层分别用于涂覆于所述交通工具外表面及内表面,所述导电涂层屏罩用于与一电容测量单元相连接,以测量所述导电涂层屏罩的电容值,从而通过判断所述第一导电涂层与所述第二导电涂层的相对面积是否有变化来检测所述交通工具是否发生过擦碰。本发明同时提供一种基于上述导电涂层屏罩的擦碰检测装置和方法。(The invention provides a conductive coating screen cover which is used for detecting whether the surface of a vehicle is subjected to over-wiping collision or not, and comprises a first conductive coating and a second conductive coating, wherein the first conductive coating and the second conductive coating are respectively used for coating the outer surface and the inner surface of the vehicle, the conductive coating screen cover is used for being connected with a capacitance measuring unit so as to measure the capacitance value of the conductive coating screen cover, and therefore whether the vehicle is subjected to over-wiping collision or not is detected by judging whether the relative area of the first conductive coating and the second conductive coating is changed or not. The invention also provides a rubbing and collision detection device and method based on the conductive coating screen cover.)

1. A conductive coating screen cover for detecting whether a vehicle surface is over-rubbed, characterized in that: the conductive coating screen cover comprises a first conductive coating and a second conductive coating, the first conductive coating and the second conductive coating are respectively used for coating the outer surface and the inner surface of the vehicle, the conductive coating screen cover is used for being connected with a capacitance measuring unit so as to measure the capacitance value of the conductive coating screen cover, and therefore whether the vehicle is over-rubbed or not is detected by judging whether the relative area of the first conductive coating and the second conductive coating is changed or not.

2. The conductively coated mask of claim 1, wherein: the conductive coating screen cover further comprises a first connecting contact point and a second connecting contact point, the first connecting contact point is connected with the first conductive coating, the second connecting contact point is connected with the second conductive coating, and the first connecting contact point and the second connecting contact point are respectively used for being connected with the capacitance measuring unit.

3. The conductively coated mask of claim 2, wherein: the first connection contact and the second connection contact are both located on the vehicle exterior surface.

4. A rub and bump detection device for detecting whether a vehicle surface has been rubbed and bumped, characterized by: the rub-and-impact detection device comprises:

the capacitance measuring unit is used for being connected with the surface of the vehicle, a conductive coating screen is arranged on the surface of the vehicle, and the capacitance measuring unit is also used for measuring the real-time capacitance value of the conductive coating screen;

an output unit;

a processor; and

a memory having stored therein a plurality of program modules that are executed by the processor and perform the following:

acquiring a real-time capacitance value measured by the capacitance measuring unit;

judging whether the real-time capacitance value is within the error range of a preset reference capacitance value or not;

and when the real-time capacitance value is not within the error range of the reference capacitance value, generating a prompt to the output unit to indicate that the vehicle surface is over-rubbed.

5. The scuffing detection device of claim 4, wherein: the plurality of program modules are further executed by the processor and perform the following:

when the real-time capacitance value is judged not to be within the error range of a preset reference capacitance value, judging the damage level of the conductive coating screen cover;

in the step of generating the cue, the cue simultaneously indicates the level of injury.

6. The scuffing detection device of claim 5, wherein: the step of judging the damage grade of the conductive coating screen cover specifically comprises the following steps:

comparing the real-time capacitance value of the conductive coating mask with preset calibration values of various levels;

and judging the damage grade of the conductive coating shield.

7. The scuffing detection device of claim 5, wherein: the step of judging the damage grade of the conductive coating screen cover specifically comprises the following steps:

calculating the actual area of the conductive coating screen cover according to the real-time capacitance value;

calculating the damage area according to the actual area and a preset reference area;

and calculating the ratio of the damaged area to the reference area, and judging the damage grade of the conductive coating screen cover.

8. The scuffing detection device of claim 4, wherein: the plurality of program modules are further executed by the processor and perform the following:

after the step of generating the prompt to the output unit to indicate that the vehicle surface is subjected to the over-rubbing collision, judging whether a reset capacitance value input by a user is received; and

and when the reset capacitance value is judged to be received, setting the reset capacitance value as a reference capacitance value.

9. The scuffing detection device of claim 4, wherein: the number of the conductive coating masks is multiple, the number of the reference capacitance values is multiple and corresponds to the multiple conductive coating masks respectively, and the error ranges of the multiple reference capacitance values are stored in the memory.

10. A rubbing and collision detection method is used for detecting whether the surface of a vehicle is rubbed and collided excessively, and is characterized in that: the surface of the vehicle is provided with a conductive coating screen cover, and the wiping and collision detection method comprises the following steps:

acquiring a real-time capacitance value of the conductive coating mask;

judging whether the real-time capacitance value is within the error range of a preset reference capacitance value;

and when the real-time capacitance value is not within the error range of the reference capacitance value, generating a prompt to indicate that the over-wiping and the wiping area of the surface of the vehicle occur.

11. The scuffing detection method of claim 10, characterized in that: the rubbing detection method further comprises the following steps:

when the real-time capacitance value is judged not to be within the error range of a preset reference capacitance value, judging the damage level of the conductive coating screen cover;

in the step of generating the cue, the cue simultaneously indicates the level of injury.

12. The scuffing detection method of claim 11, characterized in that: the step of judging the damage grade of the conductive coating screen cover specifically comprises the following steps:

comparing the real-time capacitance value of the conductive coating mask with preset calibration values of various levels;

and judging the damage grade of the conductive coating shield.

13. The scuffing detection method of claim 11, characterized in that: the step of judging the damage grade of the conductive coating screen cover specifically comprises the following steps:

calculating the actual area of the conductive coating screen cover according to the real-time capacitance value;

calculating the damage area according to the actual area and a preset reference area;

and calculating the ratio of the damaged area to the reference area, and judging the damage grade of the conductive coating screen cover.

14. The scuffing detection method of claim 10, characterized in that: the rubbing detection method further comprises:

after the step of generating the prompt to indicate that the vehicle surface is over-rubbed, determining whether a reset capacitance value input by a user is received; and

and when the reset capacitance value is judged to be received, setting the reset capacitance value as a reference capacitance value.

15. The scuffing detection method of claim 10, characterized in that: the number of the conductive coating masks is multiple, the number of the reference capacitance values is multiple and corresponds to the multiple conductive coating masks respectively, and the error range of the reference capacitance values is stored in the memory.

Technical Field

The invention relates to the field of rubbing and collision detection, in particular to a conductive coating screen cover and a rubbing and collision detection device and method based on the conductive coating screen cover.

Background

When using vehicles such as automobiles and airplanes, users can judge abnormality through the fault indicator lamp only when the vehicle body or the machine body is rubbed and bumped to cause damage to internal functional devices or cause functional failure, and some slight surface scratches or depressions can only be inspected through human eyes. Particularly, when the automobile is used, people cannot check whether the automobile is damaged in the parking process around the automobile before getting on the automobile every time, so that some collisions can be found after a plurality of days, and therefore, a user cannot timely obtain the reminding that the automobile is subjected to over-wiping collision.

Disclosure of Invention

In view of the above, it is desirable to provide a conductive coated mask and a scrub detection apparatus and method based thereon to solve the above problems.

A conductive coating screen cover is used for detecting whether the surface of a vehicle is over-rubbed and bumped or not, and comprises a first conductive coating and a second conductive coating, wherein the first conductive coating and the second conductive coating are respectively used for coating the outer surface and the inner surface of the vehicle, the conductive coating screen cover is used for being connected with a capacitance measuring unit so as to measure the capacitance value of the conductive coating screen cover, and therefore whether the vehicle is over-rubbed and bumped or not is detected by judging whether the relative area of the first conductive coating and the second conductive coating is changed or not.

A scuffing detection device for detecting whether a vehicle surface has been scuffed or not, said scuffing detection device comprising: the capacitance measuring unit is used for being connected with the surface of the vehicle, a conductive coating screen is arranged on the surface of the vehicle, and the capacitance measuring unit is also used for measuring the real-time capacitance value of the conductive coating screen; an output unit; a processor; and a memory having stored therein a plurality of program modules executed by the processor and performing the operations of: acquiring a real-time capacitance value measured by the capacitance measuring unit; judging whether the real-time capacitance value is within the error range of a preset reference capacitance value or not; and when the real-time capacitance value is not within the error range of the reference capacitance value, generating a prompt to the output unit to indicate that the vehicle surface is over-rubbed.

A rubbing and collision detection method is used for detecting whether rubbing and collision occur on the surface of a vehicle, a conductive coating screen cover is arranged on the surface of the vehicle, and the rubbing and collision detection method comprises the following steps: acquiring a real-time capacitance value of the conductive coating mask; judging whether the real-time capacitance value is within the error range of a preset reference capacitance value; and when the real-time capacitance value is not within the error range of the reference capacitance value, generating a prompt to indicate that the vehicle surface is over-rubbed.

According to the invention, the conductive coating screen cover is arranged on the vehicle, and the real-time capacitance value measured by the capacitance measuring unit is obtained to judge whether the real-time capacitance value is within the error range of the preset reference capacitance value, so that whether the vehicle is over-rubbed or not can be judged, and the vehicle is indicated to be over-rubbed or not. The conductive coating shield is easy to implement and has low cost. Based on the conductive coating screen cover, the rubbing and collision detection device and the rubbing and collision detection method can detect whether the vehicle is rubbed and collided excessively, monitor whether the vehicle has surface damage in real time and facilitate checking of a user.

Drawings

FIG. 1 is a diagram of a hardware configuration of a scrub detection device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a conductive coating mask according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of functional modules of a scrub detection system according to an embodiment of the present invention.

FIG. 4 is a schematic flow chart of a scrub and collision detection method according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a display interface on an output unit according to an embodiment of the invention.

Description of the main elements

Wiping and bumping detection device	100
		Processor with a memory having a plurality of memory cells	10
Memory device	20
		Capacitance measuring unit	30
Output unit	40
		Input unit	50
Wiping and bumping detection system	2
		Setting module	21
Measuring module	22
		Judging module	23
Computing module	24
		Output module	25
Input module	26
		Region(s)	200
Outer surface	210
		Inner surface	220
Conductive coating screen cover	300
		First conductive coating	310
Second conductive coating	320
		First connection point	330
Second connecting contact	340

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a schematic diagram of a hardware architecture of a scrub detection apparatus 100 according to an embodiment of the invention is shown. In the present embodiment, the scrub detection apparatus 100 includes at least a processor 10, a memory 20, a capacitance measurement unit 30, an output unit 40, and an input unit 50. The memory 20, the capacitance measuring unit 30, the output unit 40 and the input unit 50 are electrically connected to the processor 10, respectively. The rubbing detection device 100 is used for detecting whether rubbing and collision occur or not and whether surface damage exists or not in vehicles such as automobiles and airplanes. In the present embodiment, the scrub detecting device 100 may be, but is not limited to, a personal computer, a server, a controller, or the like. For example, the scuffing detection device 100 may be mounted on a control device of a vehicle such as an automobile.

The processor 10 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or may be composed of a plurality of integrated circuits packaged with the same function or different functions, respectively, and includes one or more Central Processing Units (CPUs), microprocessors, digital Processing chips or graphics processors, or a combination of various control chips.

The memory 20 is used for storing various data, such as program codes, in the scrub detection device 100, and realizes high-speed and automatic access to the program or data during the operation of the scrub detection device 100.

The Memory 20 may be, but is not limited to, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an electronically Erasable rewritable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, magnetic disk storage, magnetic tape storage, or any other medium readable by a computer capable of carrying or storing data.

The capacitance measuring unit 30 is used for connecting with the surface of the vehicle, the surface of the vehicle is provided with a conductive coating screen, and the capacitance measuring unit 30 is also used for measuring the real-time capacitance value of the conductive coating screen.

The vehicle may be divided into one or more zones depending on where the scrub is likely to occur. In one embodiment, the vehicle is an automobile, and the vehicle may be divided into a plurality of zones, such as a front bumper, a rear bumper, a front door, and a rear door. In another embodiment, the vehicle includes only one zone. Referring to fig. 2, fig. 2 is a schematic structural diagram of an area 200 of a vehicle and a conductive coating mask 300 disposed on the area 200. The region 200 includes an outer surface 210 and an inner surface 220 disposed opposite one another. The conductive coating mask 300 includes a first conductive coating 310 applied to the outer surface 210 and a second conductive coating 320 applied to the inner surface 220. The first conductive coating 310 and the second conductive coating 320 may be colored coatings or transparent coatings. Since the outer surface 210 and the inner surface 220 of each region 200 are coated with the conductive coating, each of the regions 200 constitutes a capacitor structure, and the first conductive coating 310 and the second conductive coating 320 constitute two plates of the capacitor structure, respectively. Since the conductive coating mask 300 is connected to the capacitance measuring unit 30 to measure the capacitance value of the conductive coating mask 300, whether the vehicle has been over-rubbed can be detected by determining whether there is a change in the relative area of the first conductive coating 310 and the second conductive coating 320.

In this embodiment, the conductive coated mask 300 further includes a first connection point 330 and a second connection point 340, the first connection point 330 being connected to the first conductive coating 310 on the outer surface 210, and the second connection point 340 being connected to the second conductive coating 320 on the inner surface 220. For ease of measurement, the first connection contact 330 and the second connection contact 340 are both located on the outer surface 210.

The capacitance measuring unit 30 is electrically connected to the first connecting contact point 330 and the second connecting contact point 340, respectively, to measure the capacitance of the conductive coating mask 300.

The output unit 40 is used for outputting information to a user, such as calculation or processing results, audio, text, images, animation, and the like of the scrub detection apparatus 100. The output unit 40 may be a central control display screen installed on the vehicle, or may be another display device.

The input unit 50 is used for a user to input various information, control instructions, and the like. In the present embodiment, the input unit 50 may include, but is not limited to, a mouse, a keyboard, a touch screen, a camera, a remote controller, and the like.

Referring to fig. 1 and fig. 3, fig. 3 is a schematic block diagram of a rub and impact detection system 2 according to an embodiment of the present invention. The rub and impact detection system 2 is applied to the rub and impact detection apparatus 100. The scrub detection system 2 may comprise a functional module consisting of a plurality of program code sections. Program code for various program segments of the rub detection system 2 may be stored in the memory 20 and executed by the processor 10 to implement the functions of the rub detection system 2 described above.

In the present embodiment, as shown in fig. 3, the scuffing detection system 2 may be divided into a plurality of functional modules according to the functions it performs, and the functional modules may include a setting module 21, a measuring module 22, a judging module 23, a calculating module 24, an output module 25 and an input module 26.

The setting module 21 is used for setting the reference capacitance value and the allowable error range of the reference capacitance value of the conductive coating mask 300. The setting module 21 is further configured to receive a reset capacitance value input by a user, and store the reset capacitance value as a reference capacitance value.

In this embodiment, the number of the conductive coating masks 300 on the vehicle surface may be multiple, the number of the reference capacitance values is multiple and corresponds to the multiple conductive coating masks 300, and the reference capacitance values and the error ranges are set by the setting module 21 and stored in the memory 20.

The setting module 21 is also used to set a baseline area and a damage rating of the conductive coated mask 300.

The measurement module 22 is used to obtain the real-time capacitance value of the conductive coated mask 300 measured by the capacitance measurement unit 30.

The determining module 23 is configured to determine whether the real-time capacitance value is within an error range of a preset reference capacitance value.

When the number of the conductive coating masks 300 is plural, the determining module 23 is configured to determine whether the real-time capacitance value of each conductive coating mask 300 is within the error range of the corresponding reference capacitance value.

The determination module 23 is further configured to determine a damage level of the conductive coating mask 300.

The calculation module 24 is configured to calculate an actual area and a damaged area of the conductive coating mask 300, and a ratio of the damaged area to a preset reference area. Since the capacitance value is related to the area of the first conductive coating 310 opposite the second conductive coating 320, the actual area and the damaged area of the conductive coated mask 300 can be calculated by measuring the real-time capacitance value.

The output module 25 is used for generating a prompt to the output unit 40 indicating the occurrence of the over-scuffing and damage level on the vehicle surface. For example, the output module 25 is configured to generate a prompt to the output unit 40, and the output unit 40 displays the detected area 200 and the damage level, and may also generate an alarm sound according to the setting of the user.

The input module 26 is used for receiving a reset capacitance value input by a user. In this embodiment, the reset capacitance value received by the input module 26 may be a reset capacitance value input by a user through the input unit 50 or other electronic devices (not shown).

Referring to fig. 4, a flow chart of a rubbing detection method applied to the rubbing detection apparatus 100 according to an embodiment of the present invention is shown. The scrub detection method is merely an example, as there are many ways to implement the method. The scrub detection method to be described next can be performed by the module shown in fig. 3. One or more steps, methods or sub-flows, etc., represented by each block in fig. 4 are performed by an example method. The exemplary method begins at step S410.

S410, obtaining the real-time capacitance value C measured by the capacitance measuring unit 30_{Fruit of Chinese wolfberry}。

Specifically, measurement module 22 obtains real-time capacitance value C of conductive coated mask 300 measured by capacitance measurement unit 30_{Fruit of Chinese wolfberry}. The number of the conductive coating mask 300 may be one or more.

Preferably, step S410 may be initiated each time the vehicle is started, or according to a certain frequency.

S420, judging the real-time capacitance value C_{Fruit of Chinese wolfberry}Whether the standard capacitance value C is preset or not₀Within the error range of (a). If yes, ending; if not, the process proceeds to step S430.

Specifically, the determining module 23 determines the real-time capacitance C_{Fruit of Chinese wolfberry}Whether the reference capacitance value C is preset or not₀Within the error range of (a). When the number of the conductive coating masks 300 is plural, the number of the reference capacitance values is plural and corresponds to the plural conductive coating masks 300, and the determining module 23 determines the real-time capacitance value C of each conductive coating mask 300 respectively_{Fruit of Chinese wolfberry}Whether or not at the corresponding reference capacitance value C₀Within the error range of (a).

And S430, judging the damage level of the conductive coating screen cover 300.

In this embodiment, the damage level of the conductive coating mask 300 is divided into five categories according to the size of the damaged area, which are: mild, moderate, partial, severe and extra-severe. The minor damage is a ratio of the damaged area to the baseline area of not more than 1/5, the moderate damage is a ratio of the damaged area to the baseline area of more than 1/5 and not more than 2/5, the partial damage is a ratio of the damaged area to the baseline area of more than 2/5 and not more than 3/5, the severe damage is a ratio of the damaged area to the baseline area of more than 3/5 and not more than 4/5, and the extra-heavy damage is a ratio of the damaged area to the baseline area of more than 4/5 and less than 1.

In one embodiment, step S430 specifically includes the following steps:

s4301: real-time capacitance value C of conductively coated mask 300_{Fruit of Chinese wolfberry}Comparing with preset calibration values of all levels;

specifically, the number of the level calibration values is four, and the number is C_{1/5 Label}、C_{2/5 Label}、C_{3/5 Label}、C_{4/5 Label}. Rating value C_{1/5 Label}、C_{2/5 Label}、C_{3/5 Label}、C_{4/5 Label}And a reference capacitance value C₀Each is set at the time of factory shipment and is prestored in the memory 20. Rating value C_{1/5 Label}、C_{2/5 Label}、C_{3/5 Label}、C_{4/5 Label}And respectively carrying out damage simulation on 1/5, 2/5, 3/5 and 4/5 areas of a sampling area for a factory, measuring the capacitance value after damage, and taking the capacitance value after damage as a calibration value of each grade.

S4302: the damage rating of the conductive coated mask 300 is determined.

When C is present_{1/5 Label}≤C_{Fruit of Chinese wolfberry}＜C₀Meanwhile, the judging module 23 judges that the damage grade of the conductive coating screen cover 300 is slight damage; when C is present_{2/5 Label}≤C_{Fruit of Chinese wolfberry}＜C_{1/5 Label}Then, the judging module 23 judges that the damage level of the conductive coating mask 300 is medium damage; when C is present_{3/5 Label}≤C_{Fruit of Chinese wolfberry}＜C_2/5When the mark is marked, the judging module 23 judges that the damage grade of the conductive coating screen cover 300 is partial damage; when C is present_{4/5 Label}≤C_{Fruit of Chinese wolfberry}＜C_{3/5 Label}Then, the judging module 23 judges that the damage level of the conductive coating screen cover 300 is serious damage; when 0 < C_{Fruit of Chinese wolfberry}＜C_{4/5 Label}Then, the judging module 23 judges that the damage level of the conductive coating mask 300 is an extra damage; when C is present_{Fruit of Chinese wolfberry}When the value is equal to 0, the determining module 23 determines that the conductive coating mask 300 is lost or the scrub detecting system 2 is damaged.

In another embodiment, step S430 specifically includes the following steps:

s4311: according to the real-time capacitance value C_{Fruit of Chinese wolfberry}Calculating the actual area S of the conductive coated mask 300_{Fruit of Chinese wolfberry}。

According to the formula C ═ S/4 π kd, the formula S ═ 4C π kd/ε can be obtained.

Wherein C is a capacitance value; pi is 3.14; k is an electrostatic force constant, k is 9.0 x 10^ 9; d is the distance of the capacitor plate, epsilon is a constant which depends on the coefficient of the material, and S is the opposite area of the capacitor plate.

Therefore, the calculation module 24 can calculate the actual area S of the conductive coated mask 300 by the formula S-4C pi kd/epsilon_{Fruit of Chinese wolfberry}I.e., the actual relative areas of the first conductive coating 310 and the second conductive coating 320 of the conductive coated mask 300.

S4312: according to the actual area S_{Fruit of Chinese wolfberry}And a preset reference area S₀And calculating the S loss of the damage area.

Specifically, the calculation module 24 depends on the actual area S_{Fruit of Chinese wolfberry}And a preset reference area S₀Calculating the damaged area S_{Decrease in the thickness of the steel}I.e. the calculation block 24 passes the formula S_{Decrease in the thickness of the steel}＝S₀-S_{Fruit of Chinese wolfberry}To calculate the damaged area S_{Decrease in the thickness of the steel}。

Wherein the capacitance of each area of the conductive coated mask 300 is measured and the reference area S of each conductive coated mask 300 is measured before shipment₀Calculated by the formula S-4C pi kd/epsilon and pre-stored in the memory 20.

S4313: calculating the damaged area S_{Decrease in the thickness of the steel}And the reference area S₀And determining the damage level of the conductive coated mask 300.

Specifically, the calculation module 24 calculatesArea of damage S_{Decrease in the thickness of the steel}And the reference area S₀According to the damage area S, the judging module 23_{Decrease in the thickness of the steel}And the reference area S₀And determining the damage level of the conductive coated mask 300.

When 0 < S_{Decrease in the thickness of the steel}/S₀When the damage level is less than or equal to 1/5, the judgment module 23 judges the damage level of the conductive coating screen cover 300 to be slight damage; when 1/5 < S_{Decrease in the thickness of the steel}/S₀When the damage level is less than or equal to 2/5, the judgment module 23 judges that the damage level of the conductive coating screen cover 300 is medium damage; when 2/5 < S_{Decrease in the thickness of the steel}/S₀When the damage level is less than or equal to 3/5, the judgment module 23 judges the damage level of the conductive coating screen cover 300 as partial damage; when 3/5 < S_{Decrease in the thickness of the steel}/S₀When the damage level is less than or equal to 4/5, the judgment module 23 judges the damage level of the conductive coating screen cover 300 as serious damage; when 4/5 < S_{Decrease in the thickness of the steel}/S₀If the damage level is less than 1, judging that the damage level of the conductive coating screen cover 300 of the module 23 is extra-heavy damage; when S is_{Decrease in the thickness of the steel}/S₀When the conductive coating screen 300 is lost or the scrub detection system 2 is destroyed, the determination module 23 determines that the conductive coating screen 300 is lost.

It is understood that in other embodiments, the damage level may be two, three, four, five, or more.

S440, a prompt is generated to the output unit 40 to indicate the occurrence of the over-rubbing on the vehicle surface.

Specifically, the output module 25 generates a prompt to the output unit 40 indicating that the vehicle surface has been over-rubbed. For example, the output module 25 generates a prompt to the output unit 40, the output unit 40 displays the area 200 where the over-wiping occurs, and may also generate an alarm sound according to the setting of the user.

Preferably, the prompt simultaneously indicates the damage level.

And S450, judging whether the reset capacitance value input by the user is received.

If the user temporarily does not need to repair the damaged surface of the vehicle, the user may input a reset capacitance value via the input unit 50 or other electronic device in order to avoid the scrub detection system 2 continuing to issue an alarm at the next start-up. The input module 26 determines whether a reset capacitance value input by a user is received. If yes, the process proceeds to step S460, otherwise, the process ends.

And S460, setting the reset capacitance value as a reference capacitance value.

Specifically, the setting module 21 sets the reset capacitance value input by the user as a reference capacitance value, stores the reference capacitance value in the memory 20, and detects whether there is a scrub or not by using the updated reference capacitance value when the scrub detection system 2 is started next time.

Referring to fig. 5, fig. 5 is a schematic diagram of a display interface on the output unit 40 according to an embodiment of the present invention. After the output unit 40 receives the prompt, the output unit 40 displays the prompt in the display interface. The display interface can display a simulation diagram of the vehicle and prompt the area where the vehicle is rubbed and touched and the damage level. Wherein, different damage grades can be represented by different colors, and each area of the vehicle is displayed by the color corresponding to the damage grade.

In the present embodiment, the vehicle is an automobile, the vehicle is divided into a plurality of areas 200, such as a left side of a front bumper, a right side of the front bumper, a hood, a left front door, a left rear door, a right front door, and a right rear door, and each area 200 is provided with a conductive coating screen 300. When the friction detection system 2 detects that the left side of the front bumper is over-rubbed and the damage level is serious, the display interface of the output unit 40 displays the simulation diagram of the vehicle and prompts to recognize the abnormal state of the left side of the front bumper and check in time! ". Therefore, the user can know the rubbing condition of the vehicle in time by looking at the display interface.

It is understood that in other embodiments, the display interface of the output unit 40 may also include only text prompts or only graphic prompts.

It is understood that in other embodiments, step S430 may be eliminated and the prompt generated by output module 25 in step S440 may not indicate a damage level, but merely indicate that an over-rub has occurred in the corresponding region 200 of conductive coated shroud 300.

It is understood that in other embodiments, steps S450 and S460 may be eliminated if the user does not need to reset the reference capacitance value.

It is understood that in other embodiments, the first connection contact 330 and the second connection contact 340 may both be located on the inner surface 220.

It is understood that in other embodiments, the first and second connection contacts 330 and 340 may be eliminated as long as the capacitance measuring unit 30 can contact the first and second conductive coatings 310 and 320, respectively.

The conductive coating mask 300 is connected to the capacitance measuring unit 30 to measure the capacitance of the conductive coating mask 300, so as to detect whether the vehicle has been over-rubbed by determining whether there is a change in the relative area of the first conductive coating 310 and the second conductive coating 320. The conductive coating mask 300 described above is easy to implement and is less costly, is not limited by the shape and size of the material, and the size of the conductive coating mask 300 can be flexibly set according to the location to be monitored. After the conductive coating screen cover 300 is damaged, the conductive coating is sprayed again, and the operation is simple.

The rubbing detection device 100 and the rubbing detection method can determine whether the vehicle has been rubbed or not and indicate that the vehicle has been rubbed or not by acquiring the real-time capacitance value measured by the capacitance measurement unit and determining whether the real-time capacitance value is within the error range of the preset reference capacitance value. Therefore, the rubbing detection device 100 and the rubbing detection method can detect whether the vehicle is rubbed excessively, monitor whether the vehicle has surface damage in real time, and facilitate the user to check in time.

It will be understood by those skilled in the art that all or part of the processes of the above embodiments may be implemented by hardware instructions of a computer program, and the program may be stored in a computer-readable storage medium, and when executed, may include the processes of the above embodiments of the methods.

In addition, functional units in the embodiments of the present invention may be integrated into the same processor, or each unit may exist alone physically, or two or more units are integrated into the same unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units or systems recited in the system claims may also be implemented by one and the same unit or system in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Finally, it should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.